feat: 경매장 거래 내역 기본 조회 시 인덱스 사용을 위한 쿼리 수정

src/main/java/until/the/eternity/auctionhistory/application/scheduler/AuctionHistoryScheduler.java

@@ -1,7 +1,5 @@
 package until.the.eternity.auctionhistory.application.scheduler;
 
-import java.util.*;
-import java.util.stream.Collectors;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Value;
@@ -16,6 +14,9 @@
 import until.the.eternity.auctionhistory.interfaces.external.dto.OpenApiAuctionHistoryResponse;
 import until.the.eternity.common.enums.ItemCategory;
 
+import java.util.*;
+import java.util.stream.Collectors;
+
 @Slf4j
 @Component
 @RequiredArgsConstructor

src/main/java/until/the/eternity/auctionhistory/application/service/AuctionHistoryService.java

@@ -1,7 +1,6 @@
 package until.the.eternity.auctionhistory.application.service;
 
 import jakarta.persistence.EntityManager;
-import java.util.List;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.data.domain.Page;
@@ -16,6 +15,8 @@
 import until.the.eternity.common.request.PageRequestDto;
 import until.the.eternity.common.response.PageResponseDto;
 
+import java.util.List;
+
 @Service
 @RequiredArgsConstructor
 @Slf4j

src/main/java/until/the/eternity/auctionhistory/application/service/fetcher/AuctionHistoryFetcher.java

@@ -1,7 +1,5 @@
 package until.the.eternity.auctionhistory.application.service.fetcher;
 
-import java.util.ArrayList;
-import java.util.List;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Component;
@@ -11,6 +9,9 @@
 import until.the.eternity.auctionhistory.interfaces.external.dto.OpenApiAuctionHistoryResponse;
 import until.the.eternity.common.enums.ItemCategory;
 
+import java.util.ArrayList;
+import java.util.List;
+
 @Slf4j
 @Component
 @RequiredArgsConstructor

src/main/java/until/the/eternity/auctionhistory/application/service/persister/AuctionHistoryPersister.java

@@ -1,6 +1,5 @@
 package until.the.eternity.auctionhistory.application.service.persister;
 
-import java.util.List;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Component;
@@ -11,6 +10,8 @@
 import until.the.eternity.auctionhistory.interfaces.external.dto.OpenApiAuctionHistoryResponse;
 import until.the.eternity.common.enums.ItemCategory;
 
+import java.util.List;
+
 @Slf4j
 @RequiredArgsConstructor
 @Component

src/main/java/until/the/eternity/auctionhistory/domain/entity/AuctionHistory.java

@@ -1,11 +1,12 @@
 package until.the.eternity.auctionhistory.domain.entity;
 
 import jakarta.persistence.*;
-import java.time.Instant;
-import java.util.List;
 import lombok.*;
 import until.the.eternity.auctionitemoption.domain.entity.AuctionItemOption;
 
+import java.time.Instant;
+import java.util.List;
+
 @Entity
 @Table(name = "auction_history")
 @Getter

src/main/java/until/the/eternity/auctionhistory/domain/event/AuctionHistorySavedEvent.java

@@ -1,8 +1,9 @@
 package until.the.eternity.auctionhistory.domain.event;
 
-import java.time.LocalDateTime;
 import lombok.Getter;
 
+import java.time.LocalDateTime;
+
 /**
  * 경매장 거래 내역 저장 완료 이벤트
  * AuctionHistoryScheduler가 거래 내역을 성공적으로 저장한 후 발행됩니다.

src/main/java/until/the/eternity/auctionhistory/domain/mapper/AuctionHistoryMapper.java

@@ -1,13 +1,14 @@
 package until.the.eternity.auctionhistory.domain.mapper;
 
-import java.util.List;
 import org.mapstruct.Mapper;
 import org.mapstruct.Mapping;
 import until.the.eternity.auctionhistory.domain.entity.AuctionHistory;
 import until.the.eternity.auctionhistory.interfaces.rest.dto.response.AuctionHistoryDetailResponse;
 import until.the.eternity.auctionhistory.interfaces.rest.dto.response.ItemOptionResponse;
 import until.the.eternity.auctionitemoption.domain.entity.AuctionItemOption;
 
+import java.util.List;
+
 /**
  * AuctionHistory Entity to internal.responseDto transfer mapper class 데이터 흐름은 external.responseDto
  * -> entity -> internal.responseDto 단방향으로 흐름

src/main/java/until/the/eternity/auctionhistory/domain/mapper/OpenApiAuctionHistoryMapper.java

@@ -1,13 +1,14 @@
 package until.the.eternity.auctionhistory.domain.mapper;
 
-import java.time.Instant;
-import java.time.temporal.ChronoUnit;
-import java.util.List;
 import org.mapstruct.*;
 import until.the.eternity.auctionhistory.domain.entity.AuctionHistory;
 import until.the.eternity.auctionhistory.interfaces.external.dto.OpenApiAuctionHistoryResponse;
 import until.the.eternity.common.enums.ItemCategory;
 
+import java.time.Instant;
+import java.time.temporal.ChronoUnit;
+import java.util.List;
+
 @Mapper(componentModel = "spring", uses = OpenApiItemOptionMapper.class)
 public interface OpenApiAuctionHistoryMapper {
 

src/main/java/until/the/eternity/auctionhistory/domain/repository/AuctionHistoryRepositoryPort.java

@@ -1,14 +1,15 @@
 package until.the.eternity.auctionhistory.domain.repository;
 
-import java.time.Instant;
-import java.util.List;
-import java.util.Optional;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import until.the.eternity.auctionhistory.domain.entity.AuctionHistory;
 import until.the.eternity.auctionhistory.interfaces.rest.dto.request.AuctionHistorySearchRequest;
 import until.the.eternity.common.enums.ItemCategory;
 
+import java.time.Instant;
+import java.util.List;
+import java.util.Optional;
+
 /** 경매장 거래 내역 POJO Repository - Mock 또는 Stub 으로 대체해 단위 테스트 용이성 확보 */
 public interface AuctionHistoryRepositoryPort {
 

src/main/java/until/the/eternity/auctionhistory/domain/service/AuctionHistoryDuplicateChecker.java

@@ -1,14 +1,15 @@
 package until.the.eternity.auctionhistory.domain.service;
 
-import java.time.Instant;
-import java.util.List;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Component;
 import until.the.eternity.auctionhistory.domain.repository.AuctionHistoryRepositoryPort;
 import until.the.eternity.auctionhistory.interfaces.external.dto.OpenApiAuctionHistoryResponse;
 import until.the.eternity.common.enums.ItemCategory;
 
+import java.time.Instant;
+import java.util.List;
+
 @Slf4j
 @Component
 @RequiredArgsConstructor

src/main/java/until/the/eternity/auctionhistory/domain/service/fetcher/AuctionHistoryFetcherPort.java

@@ -1,9 +1,10 @@
 package until.the.eternity.auctionhistory.domain.service.fetcher;
 
-import java.util.List;
 import until.the.eternity.auctionhistory.interfaces.external.dto.OpenApiAuctionHistoryResponse;
 import until.the.eternity.common.enums.ItemCategory;
 
+import java.util.List;
+
 public interface AuctionHistoryFetcherPort {
     List<OpenApiAuctionHistoryResponse> fetch(ItemCategory category);
 }

src/main/java/until/the/eternity/auctionhistory/domain/service/persister/AuctionHistoryPersisterPort.java

@@ -1,10 +1,11 @@
 package until.the.eternity.auctionhistory.domain.service.persister;
 
-import java.util.List;
 import until.the.eternity.auctionhistory.domain.entity.AuctionHistory;
 import until.the.eternity.auctionhistory.interfaces.external.dto.OpenApiAuctionHistoryResponse;
 import until.the.eternity.common.enums.ItemCategory;
 
+import java.util.List;
+
 public interface AuctionHistoryPersisterPort {
 
     List<AuctionHistory> filterOutExisting(

src/main/java/until/the/eternity/auctionhistory/infrastructure/persistence/AuctionHistoryJpaRepository.java

@@ -1,15 +1,16 @@
 package until.the.eternity.auctionhistory.infrastructure.persistence;
 
-import java.time.Instant;
-import java.util.List;
-import java.util.Optional;
 import org.springframework.data.jpa.repository.EntityGraph;
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.stereotype.Repository;
 import until.the.eternity.auctionhistory.domain.entity.AuctionHistory;
 
+import java.time.Instant;
+import java.util.List;
+import java.util.Optional;
+
 @Repository
 public interface AuctionHistoryJpaRepository
         extends JpaRepository<AuctionHistory, String>, JpaSpecificationExecutor<AuctionHistory> {

src/main/java/until/the/eternity/auctionhistory/infrastructure/persistence/AuctionHistoryQueryDslRepository.java

@@ -8,11 +8,6 @@
 import com.querydsl.core.types.dsl.NumberTemplate;
 import com.querydsl.jpa.JPAExpressions;
 import com.querydsl.jpa.impl.JPAQueryFactory;
-import java.time.Instant;
-import java.time.LocalDate;
-import java.time.ZoneId;
-import java.util.ArrayList;
-import java.util.List;
 import lombok.RequiredArgsConstructor;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.PageImpl;
@@ -28,6 +23,12 @@
 import until.the.eternity.auctionhistory.interfaces.rest.dto.request.PriceSearchRequest;
 import until.the.eternity.auctionitemoption.domain.entity.QAuctionItemOption;
 
+import java.time.Instant;
+import java.time.LocalDate;
+import java.time.ZoneId;
+import java.util.ArrayList;
+import java.util.List;
+
 @Component
 @RequiredArgsConstructor
 class AuctionHistoryQueryDslRepository {
@@ -71,17 +72,32 @@ public Page<AuctionHistory> search(AuctionHistorySearchRequest condition, Pageab
         // 3단계: 정렬 조건 빌드
         List<OrderSpecifier<?>> orderSpecifiers = buildOrderSpecifiers(pageable, ah);
 
-        // 4단계: 모든 옵션과 함께 조회 (LEFT JOIN - 조건 없음!)
+        // 4단계: Deferred Join (Late Row Lookup) 패턴 적용
+        // 4-1단계: ID만 먼저 조회 (인덱스 활용)
+        List<String> ids =
+                queryFactory
+                        .select(ah.auctionBuyId)
+                        .from(ah)
+                        .where(historyBuilder)
+                        .orderBy(orderSpecifiers.toArray(new OrderSpecifier[0]))
+                        .offset(pageable.getOffset())
+                        .limit(pageable.getPageSize())
+                        .fetch();
+
+        // 결과가 없으면 빈 페이지 반환
+        if (ids.isEmpty()) {
+            return new PageImpl<>(List.of(), pageable, 0L);
+        }
+
+        // 4-2단계: ID로 상세 조회 (LEFT JOIN으로 옵션 포함)
         List<AuctionHistory> content =
                 queryFactory
                         .selectFrom(ah)
                         .leftJoin(ah.auctionItemOptions, aio)
                         .fetchJoin()
-                        .where(historyBuilder)
+                        .where(ah.auctionBuyId.in(ids))
                         .orderBy(orderSpecifiers.toArray(new OrderSpecifier[0]))
-                        .distinct() // 중복 제거
-                        .offset(pageable.getOffset())
-                        .limit(pageable.getPageSize())
+                        .distinct()
                         .fetch();
 
         // Count 쿼리 (JOIN 없이 실행)

src/main/java/until/the/eternity/auctionhistory/infrastructure/persistence/AuctionHistoryRepositoryPortImpl.java

@@ -1,9 +1,6 @@
 package until.the.eternity.auctionhistory.infrastructure.persistence;
 
 import jakarta.persistence.EntityManager;
-import java.time.Instant;
-import java.util.List;
-import java.util.Optional;
 import lombok.RequiredArgsConstructor;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.data.domain.Page;
@@ -15,6 +12,10 @@
 import until.the.eternity.auctionhistory.interfaces.rest.dto.request.AuctionHistorySearchRequest;
 import until.the.eternity.common.enums.ItemCategory;
 
+import java.time.Instant;
+import java.util.List;
+import java.util.Optional;
+
 /** AuctionHistoryRepository Interface 구현체 */
 @Repository
 @RequiredArgsConstructor

src/main/java/until/the/eternity/auctionhistory/interfaces/external/dto/OpenApiAuctionHistoryListResponse.java

@@ -1,6 +1,7 @@
 package until.the.eternity.auctionhistory.interfaces.external.dto;
 
 import com.fasterxml.jackson.annotation.JsonProperty;
+
 import java.util.List;
 
 public record OpenApiAuctionHistoryListResponse(

src/main/java/until/the/eternity/auctionhistory/interfaces/external/dto/OpenApiAuctionHistoryResponse.java

@@ -2,9 +2,10 @@
 
 import com.fasterxml.jackson.annotation.JsonFormat;
 import com.fasterxml.jackson.annotation.JsonProperty;
+import until.the.eternity.auctionitemoption.domain.dto.external.OpenApiAuctionItemOptionResponse;
+
 import java.time.Instant;
 import java.util.List;
-import until.the.eternity.auctionitemoption.domain.dto.external.OpenApiAuctionItemOptionResponse;
 
 public record OpenApiAuctionHistoryResponse(
         @JsonProperty("item_name") String itemName,

src/main/java/until/the/eternity/auctionhistory/interfaces/rest/dto/enums/SearchStandard.java

@@ -3,6 +3,7 @@
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.v3.oas.annotations.media.Schema;
+
 import java.util.Arrays;
 
 /** 검색 기준 (이상/이하/같음) */

src/main/java/until/the/eternity/auctionhistory/interfaces/rest/dto/enums/SortDirection.java

@@ -3,6 +3,7 @@
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonValue;
 import io.swagger.v3.oas.annotations.media.Schema;
+
 import java.util.Arrays;
 
 /** 정렬 방향 (오름차순/내림차순) */

src/main/java/until/the/eternity/auctionhistory/interfaces/rest/dto/response/AuctionHistoryDetailResponse.java

@@ -1,6 +1,7 @@
 package until.the.eternity.auctionhistory.interfaces.rest.dto.response;
 
 import com.fasterxml.jackson.annotation.JsonFormat;
+
 import java.time.Instant;
 import java.util.List;
 

src/main/java/until/the/eternity/auctionitem/domain/entity/AuctionItem.java

@@ -1,11 +1,12 @@
 package until.the.eternity.auctionitem.domain.entity;
 
 import jakarta.persistence.*;
-import java.time.LocalDateTime;
-import java.util.List;
 import lombok.*;
 import until.the.eternity.auctionitemoption.domain.entity.AuctionItemOption;
 
+import java.time.LocalDateTime;
+import java.util.List;
+
 @Entity
 @Table(name = "auction_item")
 @Getter

src/main/java/until/the/eternity/auctionitemoption/domain/entity/AuctionItemOption.java

@@ -1,14 +1,15 @@
 package until.the.eternity.auctionitemoption.domain.entity;
 
 import jakarta.persistence.*;
-import java.util.UUID;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import until.the.eternity.auctionhistory.domain.entity.AuctionHistory;
 import until.the.eternity.auctionitem.domain.entity.AuctionItem;
 
+import java.util.UUID;
+
 @Entity
 @Table(name = "auction_item_option")
 @Getter

src/main/java/until/the/eternity/auctionsearchoption/application/service/AuctionSearchOptionService.java

@@ -2,8 +2,6 @@
 
 import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.ObjectMapper;
-import java.util.List;
-import java.util.Map;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
@@ -13,6 +11,9 @@
 import until.the.eternity.auctionsearchoption.interfaces.rest.dto.response.FieldMetadata;
 import until.the.eternity.auctionsearchoption.interfaces.rest.dto.response.SearchOptionMetadataResponse;
 
+import java.util.List;
+import java.util.Map;
+
 @Slf4j
 @Service
 @RequiredArgsConstructor